Type-writing machine.



P. A. YOUNG.

TYPE WRITING MACHINE.

nrmcuronrmm mums. 190s.

Patented May 2, 1911.

3 SHEETS-SHEET 1.

INVENTLIH,

\A/ITNEESES:

TTURNEY I. A. YOUNG. TYPE WRITING MAC-HIKE.

urmoumx nnnn man 23, 1905.

Patented May 2, 1911.

3 SHEETS-SHEET 2.

I HIE ATTORNEY T. A. YOUNG.

TYPE WRITING MACHINE.

' nruonmx rnnn 11m: 28,1905.

Patented May 2, 1911.

a snnmsannm '3.

|NVENTC1R= \A/IT NEESE 59 H15 TTCIRNEY UNITED stratgns- PATENT OFFICE.

FRANK A. YOUNG, OF SYRACUSE, NEW YORK, ASSIGFG'B TO THE MONARCH TYPE-WRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.-

1atented May 2, 1911.

fAppliation nled June 28, 1905.- Serial No. 267,345.

State of New York, have invented certain new and useful Improvements inTy e- Writing Machines, of which the following isa specification.

My invention relates to typewriting ma 1 chines and more especially totabulating mechanism for such machines.

My invention has for its principal object to provide an im roved columnjumper or column selecting 'evice for typewriting machines. It has beencommon in typewrit-ing machines to have a series of column stops withanother tabulator stop in such relation that when a tabulator key isoperated the car riage will be released from its ste'p-by-step .20 feedmechanism and will be arrested by the first column stop that engagessaid other tabulator stop. In the present device, which I term a columnjumper or column selector, there is a series of tabulator keys, onecorres onding to each of the column stops; and

if it is desired to move the carriage to any particular column, thedepression of the key corresponding to that column will cause thecarriage to jump or skip any other columns which may intervene and bearrested by that particular column stop which-corresponds to theparticular tabulator key depressed.

To the above'and other ends that Wlll appear hereinafter, my inventionconsists in "certain features of construction and combinations andarrangements of parts which will be fully set forth herein andparticularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a right hand side elevation ofa typewriting machine having my invention embodied therein, ditl'erentparts being shown in sec- .,tion on difi'erent planes as has been foundconvenient. Fig. 2 is a fragmentary right hand side elevation showingthe several stops employed. Fig. 3 is a rear elevation of thetypewriting machine. Fig. 4 is a top plan view of the tabulator kevmecha nism in position on the machine, toe upperpartjof the typewritermechanism being rem'o'ved.v

I have shown my invention applied to a \Ionarch front-stri typewriter,but it will be obvious that with slight modification the mechanism isapplicable to other styles of typewriting machines. The main frame ofthe machine shown in the drawings, comprises a base portion having sideplates 1, which are connected together at their-rear ends by a backplate 2 and a shelf 3. Said.

side plates 1 are also connected together just back of the keyboard by atransverse frame bar at, and intermediate said frame bar and the shelf3, said side plates are also con nected by a transverse frame bar 5.Posts 6 rising from the base portion of the frame support a top plate 7.Two posts 8, rising from said top plate, support an upper rail 9 groovedon its lower face and a lower rail 10 grooved on its upper face, thegrooves in said rails constituting race-ways for anti-friction balls or3 rollers 11 which run in cotiperating r aceways in the rails of acarriage 12 which supports a platen '13. Said carrlage is drawn acrossthe machine by a spring drum (not shown) and its motion is controlled bya feed mechanism comprising a feed rack bar 14 which is mounted on arms15 which are pivoted at their for-. ward ends in the carriage by meansof short rock shafts, on the outer ends of which aremountedrelease keys16. The arms 15 are engaged by compression springs 17, which tend topress the rack bar 14 downward into engagement with a feed pinion 18which is mounted on the forward end of a shaft 19 journaled ina bracketor housing 20. The shaft 19 at its rear end carries an escapement wheel20 that is controlled by feed dogs 91 moluited on an arm 22 that iscarried by'a rock shaft 23, that is pivoted at its ends in a bracket '24depending from the top )late 7. The arm 22 and rock shaft 23 constituteparts of a dog rocker which also comprises a forwardly extending arm-25that is connectedby a link 26 with an arm 27 connected with-a universalbar 28. Said universal bar and arm form parts of a rock frame which alsoincludes a rock shaft 29 pivoted at its ends in the side plates 1. Theuni- 39 by means of rods 41. The construction is such that when anycharacter key 31 is depressed, the corresponding sub-lever 34 is movedtoward the rear of themachine and the type bar 38 is moved about itspivot to cause one of the types on the end thereof to strike against thefront face of the platen 13. The mechanism above referred to is old andwell-known and so far as my'invention is concerned it may be of anysuitable construction.

My tabulator mechanism comprises a tabulator stop 42 c'onsistin of anarm rojecting toward the rear of the machine rom the carriage '12 towhich it is secured by screws 43 assing through ears 44 of said arm '42,an threaded into the carriage. The stop 42 is preferably mounted on thecarriage about midway of the length of said carriage. I prefer to givethe stop arm or bracket'42 the form best shown in Fig. 2, said armprojecting backward and upward andhaving its free end 45 inclineddownward. A column stop bar 46 is journaled in brackets 47 projectingtoward the rear of the I machine from the posts 8. Said column stop baris formed with notches or grooves 47 in its front and rear faces, .saidnotches or grooves'being spaced a letter space distance apart. Columnstop pieces 49 are adapted to be mounted on the bar 46, being slippedover said bar and held in position longitudinally thereon by the grooves48. Said stop pieces- 49 have the inverted U-shape best shown in 'Fig.2, and comprise web portions 50 adapted to fit snugly in the grooves48.. The side of each of said stop pieces toward the front of themachine has projecting therefrom a segmental stop portion 51, which maybe a continuation of the web portion 50 that enters the slots 48. Thesegmental stop portions 51 are substantially circular in outline but areof graduated lengths, as shown in- Fig. 2, the one nearest theright-hand side of the machine bein the shortest and the one nearest theleftand side of the machine being the longest. Each of the stop pieces49 comprises a cylindrical portion as shown in Fig. 3, and within saidcylindrical portion is included a U-shaped spring 52 that is secured atits upper side to the sto piece by a rivet 53. Said spring is adapte toclasp the sides of the column stop bar to prevent accidentaldisplacement of the stop piece therefrom. The construction is such thatany one of the stop pieces may be set in any one of the notches 48, butit is contemplated that in .ractice the sto s shall be in regular order,t e iongest one ing farthcst toward the left. Four of the selectablecolumn stops are shown in the present instance. The construction is suchthat the path of the end 45 of the tabulator stop 42 stands just abovethe highest of the column stops, 'so that if the column stop bar berotated 'a short distance toward the rear of the machine, the highest ofthese stops will be in the path of the tabulator stop; if said bar berotated a greater'distance the next stop will be in position to arrestthe car: riage stop, and so on.

In order to turn the tabulator or column stop bar through difi'erentdistances appropriate to the different column stops, a series oftabulator key levers 54 are mounted beneath the type bar system andabove the character key lever system, so that the tabulator keys55,'mounted on the forward ends of said levers, stand in a tier justback of the character keys 31.. The key levers 54 are all ofsubstantially the same length, but are pivoted at different points intheir length so that when the forward ends of the levers are depressedthrough equal distances their rear ends are elevated throughditferentdis-- tances. Three of the levers 54 are pivoted on headed andshouldered screws 56, threaded into brackets 57, rising from a baseplate 58 which is secured by screws 59 to the cross bar 5 of the mainframe. 54 is pivoted on a shouldered and headed screw 60 that isthreaded into a' bracket 61 that is secured to the back shelf 3 in amanner which .will presently be described. The forward ends of the keylevers are guided by slots in a vertical slotted plate 62 which issecured by screws 63 to the frame bar 4. The upper edge of the plate 62isbent toward the rear of the machine and supports a pad 65 for arrestinthe key levers when they return to norma position. Each key lever may beprovided with a suitable returning spring if desired, though no suchsprings are shown in the present case. As shown in the present instance,the three key levers 54nearest the middle of the machine are depressedwhere they pass beneath the type bar segment 39 in order to avoidinterference with said segment. The rear ends.

rests on the back shelf 3, to which it is secured by screws 7 2. The arm61 is secured to one of the ears 7 0 by screws 73. The universal bar 66is held in normal position by a returning spring74 coiled about theshaft 69- and connected at one end to said shaft and at the other end toa fixed art of the machine. The rock shaft 69 w obviously The fourthlever be rocked different distances by the d-ifierent keys and itsmotion will be; communicated to the tabulator bar 46 by means which willbe described hereinafter.

In order to-release the carriage by any of the keys 55-, a seconduniversal bar 75 isprovided, said universal bar lying over the keylevers 5 1, just in front of the universal bar (36. The universal bar 75is carried by arms '76 that are pivoted on the rock shaft 69. A link 77is pivoted to one of the arms 76 at 78, and the upper end of said linkis pivoted at 79 to a lever 80 pivoted on a shouldered and headed screw81, which is threaded into abracket 82 which ifi so cured by screws 83tothe under side 0 l gthe to* plate. The bracket 82 is provided with a lug 84 that lies beneath the lever 80 and limits its downward motion.Said lever engages a second lever 85, which is pivoted on a shoulderedand headed screw 86 threaded into a bracket 87 depending from the topplate 70. The end of the lever 85 opposite to the lever 80 has pivotedthereto at 88 the stem of a rack lifter 89, which passes upward througha slot in the top plate 7. The upper end of said rack lifter is forkedto embrace the reduced end of the bracket or housing 20 and each of-theforks of said rack lifter is bent toward the front of the machine andlies beneath the feed rack 14. The rear ends-of the several keys 5-1 maybe stepped, but preferably as shown the universal bar 7 5 is stepped insuch fashion that when any one of the keys is depressed itwill elevatethe universal bar 75 which will operate the rack lifter 89 and raise thefeed rack 14 outof engagement with the feed pinion l8.

The means for transmitting the motion of the rock shaft 69 to thetabulator bar 46 will now be described. A pinion 90 is mounted on oneend of the tabulator bar 46 outside of the bracket 47 and said pinion isoperated by a straight rack 91 formed on the upper end of a bar 92. Saidbar is formed at its upper end with a guide slot 93 through which passesa shouldered and headed screw 94 that is threaded into a bracket 95secured to the bracket 47 by the link 92 is limited by the lower ends ofthe islots 93 and 9t engaging the guide screws 94 and 98. \Vhcn any keyis depressed and the rock shaft 69 is rocked, the

rack 102 draws the bar 92 downward, thus rotating the tabulator barthrough a distance proportionate to the distance through So far as I amaware it is broadly new to p 7 provide a system of column stops, eachsepa ratcly adjustable in the direction of the feed of the carriage,said column stops normally standing at ditferent distances from thetabulator stop, in combination with means for moving said series ofcolumn stops through different distances in order to bring one oranother of said column stops into the path of the cotiperating tabulatorstop, whether said column stops be mounted on the frame of the machine,as in the present instance, or on the carriage. It is also broadly new,so far as I am aware, to provide a rotatable tabulator bar with a seriesof column stops adjustable lengthwise of said bar, said column stopsprojecting from said bar in different directions, so that by rotatingsaid bar through different dis-- tances one or another of saidadjustable column stops may be brought into operat ve position.

Various changes in the details of construction and arrangements may bemade without departing from my invention.

W'hat I claim as new and desire to secure by Letters Patent, is:

1. In a typewntmg machine and tabulating mechanism, the combination of acarriage; step-by-step feed devices for said carriage; a tabulator stopmounted on said carriage; a tabulator bar mounted on the framework ofthe machine; column stops mounted on said tabulator bar and having stopportions projecting therefrom in different directions; a pinion on saidtabulator bar; a sliding rack bar engaging said pinion; a series ofcharacter key levers and printing instrumentalities operated thereby; aseries of tabnlator key levers mounted above said series of characterkey levers and pivoted at vdifferent distances from their ends; auniversal frame lying over the rear ends of said tabulator key levers soasto be moved different distances by the different levers;'and a gearconnected with said universal frame and engaging said sliding rack bar.7

2. In a typewriting machine, the combination with a platen carriage,character key levers, and type bars operated by said character keylevers, of tabulator mechanism comprising tabulator stops at the rear ofthe platen carriage, tabuhrtor key levers lying above said character keylevers and below said type bars and provided'with depressible keys inthe keyboard of the ma A, means arranged above said character operateaid tabulator stops, and framework wletaehauly mounted on the main frameof the. chine above said character key levers r am ring said tabulatorkey levers mount ed Leeons i -In a typewriting machine, the combina-Lion of'a. platen carriage, a series of char- 10. bieter key=levers andprinting instrumentalities operated thereby, framework detachabiymounted on the main frame of the machine above said character keylevers, tabulntor key lever'smounted in said framework levers wherebysaid tahulator key levers

